A new study from the University of Arizona suggests that an unknown, and currently unseen planetary body exists in the outer reaches of our solar system. The planet is located far beyond Pluto and has a mass somewhere between that of Mars and Earth. This object is…
There is a region of space filled with comets beyond the gas giant Neptune known as the Kuiper Belt. This expanse holds trillions of objects – remnants of the early Solar System – and NASA's New Horizons spacecraft recently took the closest images of one of…
A new research, published on August 10, 2015, suggests a cluster of icy bodies located in the same areas as Pluto, might prove our early Solar System was inhabited by a fifth giant planet. During Neptune's migration, 4 billion years ago, the ice giant might have jum
New Horizons woke up from hibernation on December 6, 2014 after a 4.8 billion km voyage (3 billion miles) and almost nine years after launch. The spacecraft is now preparing for a six-month encounter with Pluto that begins in January 2015. This mission will complete
The Solar System once had five giant gaseous planets rather than the four it has today. That's the conclusion from a computer simulation of the Solar System's evolution, which suggests the fifth giant was hurled into interstellar space some 4 billion years…
